The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1887-07-09
SCIENCE AND INDUSTRY.

SCIENCE AND INDUSTRY.
Prof. Tyndall says the sky is In
dchtcd for its blue color to the particles
floating in the air.
"A company at Mobile are COM
PEELED to run their large establishment
night and day making slaves, barrels
and boxes for shipment North. The
time was when this industry was
practically confined to the North.
Andrew Carnegie's furnaces at
Pittsburgh, are said to make ~ much
iron per year as was mode in the entire
country in 1861. Pittsburgh claims to
have the largest steel-melting estab-
lishmcnt in the world. The city melts
369 tons per day.
Mrs. L. +. Badly, OF California, is
endeavoring to establish colony of
silk culturists in Maryland. A tract of
100 acres will be divided among ten
colonists, and by next spring she hopes
to have the experiment fully under
way Chicago Tribune.
Eight pin manufactures in New
England produce annually 100000
packs of pins. Each pack contains
| $500 pins, which makes total yearly
production of 6,72o, 900, 900 pins. These
pins are usually put up in large cases.
each case containing 672,00O pins
Boston Budget.
More thau two hundred new double
stars have been discovered in the last
live years by Prof G. w. Hougb,
of the Dearborn Observatory at Chi
cago. Most of them were somewhat
difficult of measurement, even with the
large refracting telescope of the obser-
vatory, which has an object glass eigh-
teen and half inches in diameter
N. Y. Ledger.
The experiments of DR.. Brown
Sequard have convinced him that the
rigidity retained by corpses for several
days is due to a true muscular contrac-
ton, indicating that the muscles do not
give up their vitality until after the
body has been otherwise lifeless for a
considerable time.
-Oyster-culture is carried on actively
and with yearly increasing returns ut
Arcachon and Auray in France. Fif-
teen thousand of the 81, 800 acres of the
bay of Arcachon are now covered with
oyster-beds, which yield 100000, 900
oysters year. The oyster.beds at
Auray, on the coast of Brittany, are
less important than those of Arcachon,
but they furnished 100000 oysters in
1885. .--Popular Science Monthly.
The subject of technical univer-
sity is attracting attention in London,
where an important meeting was lately
held to consider what could be done.
Professor Ayrton made an address,
presenting eloquently some very cogent
reasons why such Il university should
be established. 1t is to be hoped the
scheme now maturing will not be
dropped. Living science should have
its seat of learning as we'll as dead Lam
guages.-1he Electrical World.
Bruises may be taken out of the
woodwork of scientific instruments by
wetting with warm water. Then lay
on the place brown paper about five
layers thick, and apply a hot tlat-ircn
until the moisture is evaporated. If
the bruise is not gone repeat the
process. If the bruise is snail, merely
soak it with warm water, ard apply q
red-hot poker very near the surface.
Keep the wood wet and in few min
utes the bruise will disappear.
An interesting series of expert
ments has been made by Dr.. j. w.
Fraser on the influence of our common,
beverages on digestion. Among these
drinks he finds that water is usually the
best. Of infusions, tea or cocoa acts
most favorably when bread is eat-n.
and coffee is the best FOR use with meats
or eggs. Eggs are the best animal
food with infused beverages, ana should
be soft-boilcd when tea is the beverage,
and hard-boiled with coffee OF cocoa
ArkansaW Iraceler.